Packaging clamp for image enhancement tube

Abstract

The invention discloses a packaging clamp of an image intensifier tube, which comprises an anode carrier, an inner cavity of the anode carrier comprises a bearing hole for bearing an anode, the lower part of the anode carrier comprises a vertically arranged cylinder, and the upper part of the anode carrier comprises a supporting flange of the anode carrier which protrudes outwards; the bearing hole is vertically through, the top of the bearing hole comprises an annular flange protruding inwards, and when the anode carrier bears an anode, the annular flange is embedded into the groove of the anode fixing ring. The anode carrier of the packaging clamp can be conveniently matched with an anode transfer mechanism, and the transfer work of the anode in a vacuum environment is completed.

Description

[Technical field]

[0001] The present invention relates to an image intensifier tube, and in particular to a packaging fixture for the image intensifier tube. [Background Technology]

[0002] The core of low-light-level night vision equipment is the low-light-level image intensifier tube. The function of the image intensifier tube is to convert weak light into photoelectricity, then amplify it and amplify it to a brightness observable to the naked eye, like a vacuum phototube.

[0003] The processing and assembly of image intensifier tubes must be carried out in an ultra-high vacuum and high temperature environment. During the assembly process of image intensifier tubes, the photocathode and photoanode must be transported to the assembly site in an ultra-high vacuum and high temperature environment.

[0004] Traditionally, image intensifier tube production relies on production personnel manually controlling joysticks to manipulate workpieces in ultra-high vacuum and high-temperature cavities to achieve workpiece transfer and processing. This is not only inefficient and has a low yield rate, but also places extremely high demands on production personnel, resulting in high production costs.

[0005] To transfer the anodes of image intensifier tubes in a vacuum environment, the applicant has developed a pulsed anode transfer mechanism that operates in a vacuum environment. The mechanism comprises a support frame, a motor-driven Z-axis reciprocating mechanism, an X-axis reciprocating mechanism, and an anode transfer rack. The support frame is a strip-shaped U-shaped slot structure arranged along the X-axis. The support frame comprises a base plate and two side plates, with the U-shaped slot opening facing upward and fixed to the frame. The elongated anode transfer rack has a Π-shaped transverse cross-section. The anode transfer rack is arranged in a groove of the U-shaped slot, slidingly engaging with the groove and being driven jointly by the Z-axis reciprocating mechanism and the X-axis reciprocating mechanism. The anode transfer rack has N carrier positioning grooves on the top horizontal plate, spaced apart along the X-axis, with the spacing between adjacent carrier positioning grooves equal to the transfer pitch. The U-shaped slot has N+1 rectangular support slots located at the top of the two side plates. N+1 support slots are arranged separately along the X-axis, and the spacing between adjacent support slots is equal to the material transfer pitch. However, the anode transfer mechanism operating in the vacuum environment described above requires the cooperation of an appropriate anode fixture to complete the anode transfer work and assemble it with the cathode. [Summary of the invention]

[0006] The technical problem to be solved by the present invention is to provide a packaging fixture for an image intensifier tube which is suitable for facilitating an anode transfer mechanism to transfer an anode in a vacuum environment.

[0007] A further technical problem to be solved by the present invention is to provide a packaging fixture for an image intensifier tube suitable for assembling the anode and cathode in a vacuum environment.

[0008] In order to solve the above technical problems, the technical solution adopted by the present invention is a packaging fixture for an image intensifier tube, including an anode carrier, the inner cavity of the anode carrier including a bearing hole for supporting the anode, the lower part of the anode carrier including a vertically arranged column, and the upper part including an outwardly protruding supporting flange of the anode carrier; the bearing hole is transparent from top to bottom, and the top of the bearing hole includes an inwardly protruding annular flange, and when the anode carrier carries the anode, the annular flange is embedded in the groove of the anode fixing ring.

[0009] In the packaging fixture described above, the anode carrier includes a front body and a rear body along the Y-axis direction, the dividing plane between the front body and the rear body is orthogonal to the Y-axis, the bearing hole is a stepped hole that is larger at the top and smaller at the bottom, and the axis of the bearing hole is located in the dividing plane; the front body and the rear body are connected by bolts or screws, and the annular flange formed by the combination of the front body and the rear body clamps the fixing ring of the anode; the cylindrical optical fiber panel of the anode passes through the large hole of the stepped hole and is inserted into the small hole of the stepped hole.

[0010] The packaging fixture described above includes a test terminal seat and a terminal pressure plate; the column is a cylinder, and the supporting flange of the anode carrier is a rectangular flange; the anode includes a plurality of electrode pins, and the inner ends of the plurality of electrode pins of the anode are respectively connected to the plurality of electrode rings on the upper part of the anode; the test terminal seat is fixed on the front end surface of the rectangular flange along the Y-axis direction, and the test terminal seat includes metal terminals with the same number as the electrode pins, and the metal terminals are embedded in the terminal grooves corresponding to the test terminal seat, and the top surface and front end surface of the metal terminals are exposed outside the test terminal seat; the top surface of the metal terminal is the electrode pin connection terminal, and the front end surface of the metal terminal is the test power connection terminal; the terminal pressure plate is fixed on the top of the test terminal seat by a plurality of screws, and the outer end of the electrode pin is inserted between the bottom surface of the terminal pressure plate and the top surface of the corresponding metal terminal.

[0011] In the packaging fixture described above, along the X-axis direction, the width of the test terminal seat is greater than the width of the rectangular flange, the upper part of the front end surface of the rectangular flange includes a groove that is long along the X-axis direction, and the two sides of the front part of the rectangular flange each include a vertical slot; along the X-axis direction, the two ends of the test terminal seat each include a hook head; the rear part of the test terminal seat is arranged in the groove of the front end surface of the rectangular flange, and the bottom surface of the test terminal seat is supported by the bottom surface of the groove of the front end surface of the rectangular flange; the hook heads at both ends of the test terminal seat are respectively inserted into the slots on both sides of the rectangular flange.

[0012] The packaging fixture described above includes a cathode fixture, which includes a cathode carrier and an elastic open ring. The lower part of the cathode carrier includes a cylinder and the upper part includes an annular flange. The inner hole of the cathode carrier is a vertically arranged through hole, and the through hole is a stepped through hole with a larger bottom and a smaller top. The top of the large hole of the stepped through hole includes an annular groove, and the open ring is embedded in the annular groove. The diameter of the annular groove is adapted to the outer diameter expanded after the open ring clamps the cathode, and the lower part of the large hole of the stepped through hole includes a guide trumpet mouth for the upper end of the anode to enter.

[0013] In the aforementioned packaging fixture, the cathode fixture, which carries the cathode, is positioned directly above the anode carrier, which carries the anode. In the cathode fixture, the incident surface of the cathode faces upward. The cathode's welding surface is covered with an annular brazing sheet, the bottom of which rests on the inner ring of the anode's top bracket. At the brazing temperature of the brazing sheet, the cathode's welding surface is welded to the anode's top bracket.

[0014] In the packaging fixture described above, the anode carrier carrying the anode is transferred by the anode transfer mechanism into the vacuum welding chamber and placed on the welding seat; the anode carrier is positioned by the lower column and supported by the anode carrier support flange; the cathode fixture carrying the cathode is transferred by the cathode transfer mechanism into the vacuum welding chamber, and the robot in the vacuum welding chamber places the cathode fixture carrying the cathode directly above the anode and presses the cathode onto the inner ring of the anode top fixing frame; after the vacuum welding chamber is closed, it is evacuated and then heated to the welding temperature of the brazing sheet, and the welding surface of the cathode is welded to the anode top fixing frame.

[0015] In the packaging fixture described above, the hole wall of the cathode fixture's stepped through hole includes a plurality of vertical grooves separated along the circumference of the carrier, the bottom of the vertical groove is located outside the annular groove, and the part of the vertical groove located outside the annular groove forms an observation hole that is transparent from top to bottom; the vacuum welding chamber includes a top detection window, and the top detection window is located directly above the cathode fixture; the CCD camera detects the error in the alignment of the cathode and the anode through the upper and lower transparent observation hole, and the robot in the vacuum welding chamber adjusts the position of the cathode fixture according to the error in the alignment of the cathode and the anode.

[0016] The packaging fixture described above, the vacuum welding chamber includes a top inspection window and a bottom inspection window, the top inspection window is located directly above the cathode fixture, and the bottom inspection window is located directly below the anode carrier; the detection light source is arranged directly above the top inspection window, and the image alignment tester is arranged directly below the bottom inspection window; the optical testing instrument obtains optical data of the anode and cathode combination through the top inspection window and the bottom inspection window, and the robot in the vacuum welding chamber adjusts the position of the cathode fixture according to the optical data detected by the optical testing instrument.

[0017] In the packaging fixture described above, the inner wall of the open ring includes a plurality of grooves for expanding the ring, and the plurality of grooves are separately arranged along the circumference of the open ring.

[0018] The anode carrier of the packaging fixture of the present invention is convenient for cooperating with the anode transfer mechanism to complete the anode transfer work in a vacuum environment. [Brief Description of the Drawings]

[0019] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0020] Figure 1 4 is a front view of an anode carrier according to an embodiment of the present invention.

[0021] Figure 2 yes Figure 1 AA section view in.

[0022] Figure 3 It is an exploded view of the front and rear bodies of the anode carrier according to an embodiment of the present invention.

[0023] Figure 4 1 is a top view of the anode according to an embodiment of the present invention.

[0024] Figure 5 yes Figure 4 BB cross-section view in.

[0025] Figure 6 It is a three-dimensional diagram of the anode according to an embodiment of the present invention.

[0026] Figure 7 This is a front view of the anode and carrier combination according to an embodiment of the present invention.

[0027] Figure 8 FIG. 1 is a top view of the anode and carrier assembly according to an embodiment of the present invention.

[0028] Figure 9 yes Figure 7 CC section view in.

[0029] Figure 10 This is a front view of a cathode fixture according to an embodiment of the present invention.

[0030] Figure 11 yes Figure 10 DD cross-sectional view in.

[0031] Figure 12 4 is a top view of a cathode fixture according to an embodiment of the present invention.

[0032] Figure 13 It is a bottom view of the cathode fixture according to an embodiment of the present invention.

[0033] Figure 14 It is a three-dimensional diagram of a cathode fixture according to an embodiment of the present invention.

[0034] Figure 15 This is a three-dimensional diagram of the cathode fixture from another perspective according to an embodiment of the present invention.

[0035] Figure 16 This is a three-dimensional diagram of a cathode fixture carrying a cathode according to an embodiment of the present invention.

[0036] Figure 17 1 is a top view of a cathode fixture carrying a cathode according to an embodiment of the present invention.

[0037] Figure 18 yes Figure 17 FF cross-sectional view in.

[0038] Figure 19 yes Figure 17 EE cross-sectional view in.

[0039] Figure 20 It is a top view of the packaging fixture of the image intensifier tube in the working state according to the embodiment of the present invention.

[0040] Figure 21 This is a front view of the packaging fixture of the image intensifier tube in the working state according to the embodiment of the present invention.

[0041] Figure 22 yes Figure 21 GG cross-sectional view in.

[0042] Figure 23 It is a front view of the image intensifier tube according to an embodiment of the present invention.

[0043] Figure 24 yes Figure 23 HH section view in. [Specific implementation method]

[0044] The packaging fixture of the image intensifier tube according to the embodiment of the present invention is as follows Figures 1 to 22 As shown, it includes an anode carrier 10 and a cathode fixture 20 .

[0045] like Figures 1 to 9 As shown, the inner cavity of the anode carrier 10 has a receiving hole 13 for supporting the anode. The lower part of the anode carrier 10 has a vertically arranged column 11, which is a cylindrical body. The upper part of the anode carrier 10 has a rectangular supporting flange 12 protruding outward. The receiving hole 13 is transparent from top to bottom and is a stepped hole with a larger top and a smaller bottom. The top of the stepped hole 131 has an annular flange 132 protruding inward. When the anode carrier 10 carries the anode 30, the annular flange 132 is embedded in the groove of the anode fixing ring 31 to fix the anode.

[0046] The anode carrier 10 is divided into a front body 10A and a rear body 10B along the Y-axis. The plane dividing the front and rear bodies 10A and 10B is perpendicular to the Y-axis, and the vertical axis of the receiving hole 13 lies in the plane dividing the front and rear bodies 10A and 10B. The front and rear bodies 10A and 10B are connected by screws 18. The annular flange 132 formed by the front and rear bodies 10A and 10B clamps the anode's retaining ring 31. The cylindrical fiber optic faceplate 32 of the anode 30 is inserted through the large hole 131 of the stepped hole and into the small hole 133 of the stepped hole.

[0047] The anode carrier 10 is equipped with a test terminal seat 10C and a bar-shaped terminal pressure plate 14. The anode 30 has four electrode pins 33, and the inner ends of the four electrode pins 33 of the anode are respectively connected to the multiple electrode rings 34 on the upper part of the anode 30. The test terminal seat 10C is fixed on the front end surface of the rectangular support flange 12 along the Y-axis direction. The test terminal seat 10C has four metal terminals 15. The metal terminals 15 are embedded in the terminal grooves corresponding to the test terminal seat 10C. The top surface 151 and the front end surface 152 of the metal terminal 15 are exposed outside the test terminal seat 10C. The top surface 151 of the metal terminal 15 is the connection terminal of the electrode pin 33, and the front end surface 152 of the metal terminal 15 is the test power connection terminal. The terminal pressing plate 14 is fixed above the test terminal seat 10C by 5 screws 17, and the outer end of the electrode pin 33 is inserted between the bottom surface of the terminal pressing plate 14 and the top surface 151 of the corresponding metal terminal 15 to realize the electrical connection between the electrode pin 33 and the corresponding metal terminal 15.

[0048] The width of the test terminal seat 10C along the X-axis direction is greater than the width of the rectangular support flange 12. The upper part of the front end surface of the rectangular support flange 12 has a groove 121 extending along the X-axis direction, and there is a vertical slot 122 on each side of the front part of the rectangular support flange 12. Along the X-axis direction, there is an inward hook 16 at each end of the test terminal seat 10C. The rear part of the test terminal seat 10C is arranged in the groove of the front end surface 121, and the bottom surface of the test terminal seat 10C is supported by the bottom surface of the lower end of the groove 121 on the front end surface of the rectangular support flange 12. The hooks 16 at both ends of the test terminal seat 10C are respectively inserted into the slots 122 on both sides of the rectangular support flange 12 to realize the connection and fixation of the test terminal seat 10C and the precursor 10A.

[0049] The cathode fixture 20 has a cathode carrier 20A and an elastic open ring 21. The cathode carrier 20A has a cylinder 22 at the bottom and an annular flange 23 at the top. The inner hole of the cathode carrier 20A is a vertically arranged through hole, which is a stepped through hole 24 with a larger bottom and a smaller top. There is an annular groove 242 at the top of the large hole 241 of the stepped through hole 24. The open ring 21 is embedded in the annular groove 242. The diameter of the annular groove 242 is adapted to the outer diameter of the open ring 21 after clamping the cathode 40. The lower part of the large hole of the stepped through hole 24 has a guide horn 243 for the upper end of the anode to enter. The inner wall of the open ring 21 includes four grooves 211 for expanding the ring. The four grooves are arranged separately along the circumference of the open ring. The open ring 21 can be expanded using tools to facilitate the installation of the cathode 40.

[0050] The cathode fixture 20, carrying the cathode 40, is positioned directly above the anode carrier 10, which carries the anode 30. In the cathode fixture 20, the incident surface 41 of the cathode 40 faces upward. The welding surface 42 of the cathode 40 is covered with an annular brazing sheet 43. The bottom surface of the brazing sheet 43 rests on the inner ring of the anode top bracket 35. The brazing sheet 43 melts at the welding temperature, welding the cathode welding surface 42 to the anode top bracket 35.

[0051] When assembling the anode 30 and cathode 40 for an image intensifier tube according to an embodiment of the present invention under vacuum, the anode carrier 10 carrying the anode 30 is transferred by an anode transfer mechanism into a vacuum welding chamber and placed on a welding seat within the chamber. The lower column 11 of the anode carrier 10 is positioned within the positioning hole of the welding seat, and the anode carrier 10 is supported by the bottom surface of a rectangular support flange 12. The cathode jig 20 carrying the cathode 40 is transferred by the cathode transfer mechanism into the vacuum welding chamber. After the vacuum welding chamber is sealed and evacuated, a robot in the vacuum welding chamber places the cathode jig 20 carrying the cathode 40 directly above the anode. After aligning the cathode 40 with the anode 30, the robot applies pressure to the cathode jig, forcing the bottom surface of the brazing sheet 43 to adhere to the inner ring of the anode top fixing frame 35 under pressure. The jig is then heated to the welding temperature of the brazing sheet 43. After the brazing sheet 43 melts, the welding surface 42 of the cathode 40 is welded to the anode top fixing frame 35.

[0052] The anode transfer mechanism under a vacuum environment includes a support frame, a first Z-axis reciprocating motion mechanism driven by a motor, a first X-axis reciprocating motion mechanism, and an anode material transfer frame. The support frame is a strip-shaped U-shaped groove structure arranged along the X-axis direction. The support frame includes a base plate and two side plates. The opening of the support frame U-shaped groove faces upward, and the support frame U-shaped groove is fixed to the frame. The transverse cross-section of the long strip anode material transfer frame is P-shaped. The anode material transfer frame is arranged in the groove of the support frame U-shaped groove, slidingly cooperates with the U-shaped groove, and is jointly driven by the first Z-axis reciprocating motion mechanism and the first X-axis reciprocating motion mechanism. There are N carrier positioning grooves on the horizontal plate at the top of the anode material transfer frame. The N carrier positioning grooves are arranged separately along the X-axis direction, and the spacing between adjacent carrier positioning grooves is equal to the material transfer pitch. The support frame U-shaped groove has N+1 rectangular support slot holes, which are arranged at the top of the two side plates of the U-shaped groove and are compatible with the rectangular support flange 12. N+1 supporting slots are arranged separately along the X-axis direction, and the spacing between adjacent supporting slots is equal to the material shifting pitch. The anode carrier 10 that needs to be shifted is input from one end of the support frame along the X-axis direction and placed on the supporting slot hole of the U-shaped groove of the support frame. The rectangular supporting flange 12 of the anode carrier 10 is supported by the supporting slot hole. When the anode is shifted, the anode shifting frame is driven to rise by the first Z-axis reciprocating motion mechanism, and the carrier positioning groove of the anode shifting frame is supported under the column 11 of the anode carrier 10 to lift the anode carrier 10. When the bottom surface of the rectangular supporting flange 12 of the anode carrier 10 is higher than the top surface of the U-shaped groove of the support frame, the first X-axis reciprocating motion mechanism drives the anode shifting frame and the anode carrier 10 on the anode shifting frame to move forward along the X-axis direction by a material shifting pitch. Then, the anode moving rack and the anode carrier 10 on the anode moving rack are driven to fall by the first Z-axis reciprocating motion mechanism, and the anode carrier 10 falls again on the supporting slot hole of the U-shaped slot of the support frame, realizing a displacement of one pitch along the X-axis direction. The anode moving rack is reset under the drive of the first X-axis reciprocating motion mechanism to prepare for the next material moving cycle.

[0053] The cathode material moving mechanism in a vacuum environment includes a second Z-axis reciprocating motion mechanism driven by a motor, a second X-axis reciprocating motion mechanism, a cathode material moving rack, and a cathode fixture support plate. The cathode material moving rack is jointly driven by the second Z-axis reciprocating motion mechanism and the second X-axis reciprocating motion mechanism. The lower end of the cathode material moving rack includes N cathode fixture lifting plates protruding forward along the Y-axis direction. The N cathode fixture lifting plates are arranged separately along the X-axis direction, and the spacing between adjacent cathode fixture lifting plates is equal to the material moving pitch. The support plate is fixed to the frame and includes N+1 material support slots arranged separately along the X-axis direction. The spacing between adjacent material support slots is equal to the material moving pitch. The rear end of the material support slot is open along the Y-axis direction. The width of the material support slot along the X-axis direction is greater than the width of the lifting plate along the X-axis direction, which facilitates the lifting plate to pass up and down. The cathode fixture 20 that needs to be moved is input from one end of the support plate along the X-axis direction and placed on the material support slot of the support plate. The annular flange 23 of the cathode fixture 20 is supported by the support plate. During material transfer, the cathode material transfer frame is driven upward by the second Z-axis reciprocating motion mechanism. The cathode material transfer frame's lifting plate is supported under the cathode fixture 20 column 22 to lift the cathode fixture 20. When the bottom surface of the cathode material transfer frame's lifting plate is higher than the top surface of the support plate, the second X-axis reciprocating motion mechanism drives the cathode material transfer frame and the cathode fixture 20 on the cathode material transfer frame to move forward along the X-axis direction by one material transfer pitch. Then, the cathode material transfer frame and the cathode fixture 20 on the cathode material transfer frame are driven downward by the second Z-axis reciprocating motion mechanism. The cathode fixture 20 falls back onto the material support slot of the support plate, achieving a displacement of one pitch along the X-axis direction. The cathode material transfer frame is reset under the drive of the second X-axis reciprocating motion mechanism to prepare for the next material transfer cycle.

[0054] The wall of the stepped through-hole 24 in the cathode jig 20 features four vertical grooves 25 evenly spaced along the circumference of the carrier. The bottom 251 of the vertical grooves 25 lies outside the annular groove 242. The portion of the vertical groove 25 outside the annular groove 242 forms a vertically transparent observation hole 26. The vacuum welding chamber has a top inspection window located directly above the cathode jig 20. Before welding, a CCD camera detects the alignment error between the cathode and anode through the transparent observation hole 26. Based on this error, the robot in the vacuum welding chamber adjusts the position of the cathode jig 20.

[0055] The vacuum welding chamber also has a bottom inspection window, located directly below the positioning hole of the welding base and the anode carrier 10. Before welding, a detection light source is placed directly above the top inspection window, and an image alignment tester is placed directly below the bottom inspection window. The image alignment tester detects optical data of the anode and cathode assembly. Based on the optical data detected by the image alignment tester, the robot in the vacuum welding chamber adjusts the position of the cathode fixture 20.

[0056] The anode carrier of the packaging fixture of the above embodiment of the present invention facilitates cooperation with the anode transfer mechanism to complete the transfer of the anode in a vacuum environment. The cathode fixture of the packaging fixture of the above embodiment of the present invention facilitates cooperation with the cathode transfer mechanism to complete the transfer of the cathode in a vacuum environment. The packaging fixture for image intensifier tubes of the above embodiment of the present invention is suitable for completing the assembly of the anode and cathode of image intensifier tubes in a vacuum environment.

Claims

1. A packaging fixture for an image intensifier tube, comprising an anode carrier, wherein the inner cavity of the anode carrier comprises a receiving hole for supporting the anode, characterized in that: The lower part of the anode carrier includes a vertically arranged column, and the upper part includes a supporting flange of the anode carrier protruding outward; the bearing hole is transparent from top to bottom, and the top of the bearing hole includes an annular flange protruding inward. When the anode carrier carries the anode, the annular flange is embedded in the groove of the anode fixing ring.

2. The packaging fixture according to claim 1, wherein: The anode carrier includes a front body and a rear body along the Y-axis direction, the dividing plane between the front body and the rear body is orthogonal to the Y-axis, the receiving hole is a stepped hole with a larger upper portion and a smaller lower portion, and the axis of the receiving hole is located in the dividing plane; The front body and the rear body are connected by bolts or screws. The annular flange formed by the front body and the rear body clamps the fixing ring of the anode; the cylindrical optical fiber panel of the anode passes through the large hole of the stepped hole and is inserted into the small hole of the stepped hole.

3. The packaging fixture according to claim 1, wherein: It includes a test terminal seat and a terminal pressure plate; the column is a cylinder, and the supporting flange of the anode carrier is a rectangular flange; the anode includes a plurality of electrode pins, and the inner ends of the plurality of electrode pins of the anode are respectively connected to the plurality of electrode rings on the upper part of the anode; the test terminal seat is fixed on the front end surface of the rectangular flange along the Y-axis direction, and the test terminal seat includes metal terminals with the same number as the electrode pins, and the metal terminals are embedded in the terminal grooves corresponding to the test terminal seat, and the top surface and front end surface of the metal terminals are exposed outside the test terminal seat; the top surface of the metal terminal is the electrode pin connection terminal, and the front end surface of the metal terminal is the test power connection terminal; the terminal pressure plate is fixed on the top of the test terminal seat by a plurality of screws, and the outer end of the electrode pin is inserted between the bottom surface of the terminal pressure plate and the top surface of the corresponding metal terminal.

4. The packaging fixture according to claim 3, wherein: Along the X-axis direction, the width of the test terminal seat is greater than the width of the rectangular flange, the upper part of the front end surface of the rectangular flange includes a groove extending along the X-axis direction, and both sides of the front part of the rectangular flange each include a vertical slot; along the X-axis direction, both ends of the test terminal seat each include a hook head; the rear part of the test terminal seat is arranged in the groove of the front end surface of the rectangular flange, and the bottom surface of the test terminal seat is supported by the bottom surface of the groove of the front end surface of the rectangular flange; the hook heads at both ends of the test terminal seat are respectively inserted into the slots on both sides of the rectangular flange.

5. The packaging fixture according to claim 1, wherein: The cathode fixture comprises a cathode carrier and an elastic open ring. The lower part of the cathode carrier comprises a cylinder and the upper part comprises an annular flange. The inner hole of the cathode carrier is a vertically arranged through hole, and the through hole is a stepped through hole with a larger bottom and a smaller top. The top of the stepped through hole comprises an annular groove, and the open ring is embedded in the annular groove. The diameter of the annular groove is adapted to the outer diameter expanded after the open ring clamps the cathode. The lower part of the stepped through hole comprises a guide trumpet mouth for the upper end of the anode to enter.

6. The packaging fixture according to claim 1, wherein: The cathode jig carrying the cathode is arranged directly above the anode carrier carrying the anode. In the cathode jig, the incident surface of the cathode faces upward; the welding surface of the cathode is covered with an annular brazing sheet, and the bottom surface of the brazing sheet is seated on the inner ring of the anode top fixing frame. At the welding temperature of the brazing sheet, the welding surface of the cathode is welded to the anode top fixing frame.

7. The packaging fixture according to claim 6, wherein: The anode carrier carrying the anode is transferred by the anode transfer mechanism into the vacuum welding chamber and placed on the welding seat; the anode carrier is positioned by the lower column and supported by the anode carrier support flange; the cathode fixture carrying the cathode is transferred by the cathode transfer mechanism into the vacuum welding chamber, and the robot in the vacuum welding chamber places the cathode fixture carrying the cathode directly above the anode and presses the cathode onto the inner ring of the anode top fixing frame; after the vacuum welding chamber is closed, it is evacuated and then heated to the welding temperature of the brazing sheet, and the welding surface of the cathode is welded to the anode top fixing frame.

8. The packaging fixture according to claim 7, wherein: The wall of the cathode fixture's stepped through hole includes a plurality of vertical grooves spaced apart along the circumference of the carrier, the bottoms of the vertical grooves being located outside the annular groove, and the portions of the vertical grooves located outside the annular groove forming an observation hole that is transparent from top to bottom; the vacuum welding chamber includes a top inspection window, which is located directly above the cathode fixture; The CCD camera detects the alignment error between the cathode and the anode through the upper and lower transparent observation holes. According to the alignment error between the cathode and the anode, the robot in the vacuum welding chamber adjusts the position of the cathode fixture.

9. The packaging fixture according to claim 7, wherein: The vacuum welding chamber includes a top inspection window and a bottom inspection window. The top inspection window is located directly above the cathode fixture, and the bottom inspection window is located directly below the anode carrier. The detection light source is arranged directly above the top inspection window, and the alignment tester is arranged directly below the bottom inspection window. The optical testing instrument obtains optical data of the anode and cathode assembly through the top detection window and the bottom detection window. According to the optical data detected by the optical testing instrument, the manipulator in the vacuum welding chamber adjusts the position of the cathode fixture.

10. The packaging fixture according to claim 5, wherein: The inner wall of the open circular ring comprises a plurality of grooves for expanding the ring, and the plurality of grooves are separately arranged along the circumference of the open circular ring.

Images